Comment 9 for bug 1956195

Thanks, sounds like it isn't anything flatpak-related. Searching around, I also found https://github.com/MonoGame/MonoGame/issues/7509 which looks similar (interestingly, also on arm64)

Reading the docs for g_filename_from_utf8() mentions that it relies on the current locale - what's the output from the `locale` command for your system?